1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39fc6c339dd1239e3f986d9685fe990e82042223a233491d24e368aa693332ce. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8dbe0a4-c1d8-45f6-97fc-66f0f0512c5b.json and https://artists.proofprofile.net/proofs/artist/b8dbe0a4-c1d8-45f6-97fc-66f0f0512c5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fd1e01d252a92ddd033237b11e9a19c3409fc2b7164d43e493abfc99821908. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRZ291832161.
Flower Crew: Joseon Marriage Agency (Original Television Soundtrack, Pt. 1)
PIN GURURU (From "Flower Crew: Joseon Marriage Agency")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bad09fb791c1aaa1663bffb8daddf767f7e7de4211f76e24a5968ad07478440. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:03:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA251901557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c27587c45a9e6b58ff4cffa49ab34b1c065c10f7f894b4d469093988e00de3a. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEKE1928613.
위험한 약속 (Original Television Soundtrack), Pt. 1
위험한 약속 (Original Television Soundtrack) Pt.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e154b509d4a1ec67fe2443e3e5fff1f3960617eb0cf493659da4d90f8678c6. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382001627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb57321bca2c0deb1db670565c6a2e1da5f3a64013cf57a4191dd802ca1b710b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382005367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcd0af068c7bf7303ce61ed4477117f5a96c55774afcfe90f240813686314e2. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:28:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382005860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12542244cfb55471bb1e755009c6ab84ccc30846733f12a4695de594c094d26. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:49:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382206422.
A Tale of Hoteliers (Original Television Soundtrack) Pt.1 - Those days, Every day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa188eb71f651ee6648dd44440b66fc548ec59eeaa826668d97624d7317beb3ad. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382301480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b03a62024e6b87bb1e6e3d0363b978f79d7f9f7b7d037c10b06e338172f161. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382301481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaef3e6013e79d840ce2aa5b29a9f8db7c3887f93bdf769d7736ebddb492d7b0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2350492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6865fa428606901572e4eedb75019c01b24d45aa2d8ac5b4ab39067a98ee7b64. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382302191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b96a587ea3e974efdaa156b63f71ce9e76d87a1ac07a5b2c96c5de9245ecb51. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:49:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382321237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6af4eea124d5c6911f60eae5e4145a38828632b73879e79ea87ec9d320f409f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRNAR2354837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35788d402a118da7210f7f73f4e26e4ff4ede4f94621fb56a0d06aa661563382. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KSA012337681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4e06b9101f081138e041238b7e56ecb97dac7168825051581dca93a5cabd97. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KSA012363168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440374c54959f064f6e52e1bbee9663f0bd9388b4d8239a9d28e4fba23d6451f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382406725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff49d8615d6a64afd1a1dd8b3eff0e3a8ccb164a10c207ba40e48b3e6276683c. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KSA012383481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe885ac07da1528741fc45fd42324af86bd11a2f09af9f93bd3bf10fb853f0d0f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB472502957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e9e3b3f827ec97b45e7af519a3c68d8e212bedd49b566f450d5ec5a721bdf4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEKE1808740.